Patients with pathologically confirmed diagnosis of advanced, recurrent, or metastatic cancer and who are refractory to standard therapy or for whom no standard therapy exists will first receive a one-hour infusion of a defined dose of GLPG0187. If well tolerated, one week later a three-week continuous infusion is started. If according to the investigator a subject has a clinical benefit from treatment with GLPG0187, the treatment cycle may be repeated until disease progression, Dose Limiting Toxicity (DLT), or the patient chooses to stop or cannot/will not comply with study procedures.